Amaryllis vs Four O'Clock Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Amaryllis
Hippeastrum spp.
Amaryllis are bulbous perennials prized for their large, showy, trumpet-shaped flowers that bloom in winter or spring. They are commonly grown indoors for their spectacular floral display. The plant produces strap-like leaves after or sometimes concurrently with the flower stalk. While technically perennials, they are often treated as annuals, discarded after flowering, or forced into dormancy for reblooming. They are not naturally indoor plants, but are well-suited to container growing and forced blooming indoors.
Four O'Clock
Mirabilis jalapa
Mirabilis jalapa, commonly known as the Four O'Clock flower, is a bushy, herbaceous perennial typically grown as an annual in cooler climates. It's known for its trumpet-shaped flowers that open in the late afternoon or early evening, releasing a sweet fragrance. The flowers come in a variety of colors, including pink, red, yellow, white, and multicolored variations. It grows from tuberous roots and can reach a height of 1-3 feet. It is primarily grown outdoors in gardens and borders for its vibrant colors and evening fragrance. It is not ideally suited as an indoor plant.
Quick Plant Comparison
| Feature | Amaryllis | Four O'Clock |
|---|---|---|
| Light | Bright, indirect light when actively growing and flowering. Direct sunlight can scorch leaves. During dormancy, a cool, dark location is ideal. | Full sun to partial shade |
| Watering | Every 1-2 weeks during active growth; Much less during dormancy | Every 3-7 days depending on weather and soil drainage |
| Humidity | 40-60% | 40-60% |
| Temperature | 18-24°C | 18-27°C |
| Care Level | Moderate | Expert |
| Growth Rate | Moderate | Fast |
| Max Height | 30-60 cm | 0.3-1 meter (indoors unlikely to reach this height) |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining potting mix, such as a mix of peat moss, perlite, and vermiculite. | Well-draining soil, such as a mix of garden soil, sand, and compost |
| Beginner Friendly | With Caution | ❌ No |
| Weekly Maintenance | 10 minutes weekly during active growth; 5 minutes monthly during dormancy | 15 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Amaryllis
| Scientific Name | Hippeastrum spp. |
|---|---|
| Family | Amaryllidaceae |
| Native To | South America (primarily Brazil, Peru, Argentina) |
| Also Known As | Amaryllis, Barbados Lily, Naked Lady Lily |
| Leaves | Strap-like, green leaves that emerge from the bulb after or sometimes concurrently with the flower stalk. The leaves are smooth and can grow up to 50 cm long. |
| Flowers | Yes, Amaryllis flowers indoors readily when forced. The flowers are large, trumpet-shaped, and come in a variety of colors, including red, pink, white, and orange. Each bulb can produce multiple flower stalks, each with several blooms. |
Four O'Clock
| Scientific Name | Mirabilis jalapa |
|---|---|
| Family | Nyctaginaceae |
| Native To | Tropical South America |
| Also Known As | Four O'Clock Flower, Marvel of Peru, Beauty-of-the-Night |
| Leaves | The leaves are ovate to lance-shaped, typically 2-4 inches long, and have a smooth texture. They are usually medium green in color and arranged oppositely along the stems. |
| Flowers | Flowers are trumpet-shaped, about 1-2 inches long, and come in a variety of colors including pink, red, yellow, white, and multicolored. They open in the late afternoon or early evening and emit a sweet fragrance. Flowering indoors is rare and unlikely. |
📏 Size & Growth — Plant Comparison
Amaryllis
Four O'Clock
🌱 Propagation — Comparing Plant Growth
Amaryllis
Methods: Bulb offsets (division), Seed (though slow and not true to parent)
Difficulty: Moderate
Tips: Separate offsets from the mother bulb when repotting. Allow offsets to dry slightly before planting in their own pots. Seeds require consistent moisture and warmth to germinate.
Four O'Clock
Methods: Seed, Tuber division
Difficulty: Easy
Tips: Sow seeds directly in the garden after the last frost or start them indoors 6-8 weeks before. Divide tubers in early spring.
✨ Benefits & Features — Comparing Plant Value
Amaryllis
Amaryllis bulbs are known for their ability to produce large, showy flowers from a relatively small bulb. The flowers come in a variety of colors, including red, pink, white, and orange. The plant's dormancy period is crucial for reblooming, making it a unique cycle of care.
- ✓ Provides beautiful, colorful blooms during the winter months
- ✓ Offers a sense of accomplishment when successfully forced into bloom
- ✓ Adds a touch of elegance and sophistication to any room
- ✓ Can be a long-lived plant with proper care and dormancy
- ✓ Offers a connection to nature indoors, especially during colder months
- ⚠️ Toxic to pets
Four O'Clock
The flowers open in the late afternoon or early evening, hence the name 'Four O'Clock'. They are known for their sweet fragrance and the ability to produce multiple colors on the same plant, sometimes even on the same flower.
- ✓ Adds vibrant color to the garden
- ✓ Provides a sweet evening fragrance
- ✓ Attracts pollinators
- ✓ Relatively low-maintenance once established
- ✓ Can self-seed and naturalize in suitable climates
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Amaryllis
Four O'Clock
🌞 Light Requirements
Amaryllis
Bright, indirect light when actively growing and flowering. Direct sunlight can scorch leaves. During dormancy, a cool, dark location is ideal.
Low light tolerant: ❌ No
Four O'Clock
Full sun to partial shade
Low light tolerant: ❌ No
💧 Watering Needs
Amaryllis
Water thoroughly when the top inch of soil is dry during active growth. Reduce watering significantly during dormancy, only watering enough to prevent the bulb from completely drying out. Overwatering can lead to bulb rot. Underwatering during active growth can stunt flower development.
Four O'Clock
Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. During hot summer months, more frequent watering may be necessary. Reduce watering in cooler months.
🌡️ Temperature & Humidity
Amaryllis
Temperature: 18-24°C
Humidity: 40-60%
Four O'Clock
Temperature: 18-27°C
Humidity: 40-60%
🤔 Which Plant Is Right For You?
Amaryllis
Hippeastrum spp.Individuals who enjoy the spectacle of large, colorful blooms during the winter months and are willing to provide a dormancy period.
✅ Choose This Plant If...
- You want a plant that produces large, showy flowers in the winter months.
- You enjoy the process of forcing bulbs into bloom.
- You are looking for a relatively low-maintenance plant during its active growth phase.
- You appreciate a plant that can be brought back into bloom year after year with proper care.
- You want a plant that adds a touch of elegance and color to your indoor space.
❌ Skip This Plant If...
- You have pets that may ingest the plant, as it is toxic.
- You are not able to provide a period of dormancy for the bulb.
- You are looking for a plant that is constantly in bloom, as Amaryllis only blooms once per year.
Four O'Clock
Mirabilis jalapaGardeners looking for a fragrant, colorful addition to their evening garden.
✅ Choose This Plant If...
- You want a fragrant evening garden
- You enjoy vibrant, multicolored flowers
- You want a plant that attracts pollinators like moths and hummingbirds
- You are looking for a low-maintenance outdoor plant once established
- You want a plant that can self-seed and return year after year.
❌ Skip This Plant If...
- You have pets that may ingest the plant
- You lack a sunny outdoor space
- You want a plant that thrives indoors.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Amaryllis is rated Moderate care level, while Four O'Clock is Expert.
Amaryllis has moderate growth, while Four O'Clock grows fast.
💡 Pro Tips For Comparing These Plants
Amaryllis Care Tips
Amaryllis are relatively easy to grow indoors, but require a period of dormancy to rebloom. Providing adequate light, proper watering, and appropriate fertilization are crucial for successful flowering. Toxicity to pets is a significant concern.
- Rotate the pot regularly to ensure even growth and prevent the flower stalk from leaning towards the light.
- Support the flower stalk with a stake if it becomes too heavy.
- Avoid overwatering, as this can lead to bulb rot.
- Allow the soil to dry out slightly between waterings.
- Provide a period of dormancy to encourage reblooming in subsequent years.
Four O'Clock Care Tips
Four O'Clocks are primarily outdoor plants and require full sun to thrive. Growing them indoors is challenging due to their high light requirements and potential for pest infestations. They also spread via tuberous roots, which can quickly outgrow a container. Indoor flowering is unlikely.
- Plant in well-draining soil to prevent root rot.
- Provide full sun for best flowering.
- Deadhead spent flowers regularly to encourage more blooms.
- Protect from strong winds, which can damage the delicate stems.
- Monitor for pests like aphids and treat promptly.
⚠️ Common Problems & Solutions — Plant Care Comparison
Amaryllis
Four O'Clock
❓ Frequently Asked Questions — Comparing These Plants
Amaryllis
What are the light requirements for Amaryllis?
Amaryllis plants need bright, indirect sunlight to thrive and produce vibrant blooms. Ideally, place them near an east- or west-facing window where they can receive ample light without being exposed to harsh, direct sunlight, which can scorch the leaves. If you don’t have access to a brightly lit window, consider using a grow light to supplement their light needs, especially during the darker winter months. Rotate the pot regularly, about once a week, to ensure that all sides of the plant receive adequate light. This will prevent the flower stalk from leaning excessively towards the light source and promote even growth. Inadequate light can result in weak, leggy growth and a lack of blooms.
How do I care for Amaryllis?
Amaryllis thrive in bright, indirect light, requiring at least 6 hours of sunlight daily. Rotate the pot regularly to ensure even growth. Plant the bulb in well-draining potting mix, leaving the top third exposed. Water sparingly until growth appears, then increase watering to keep the soil consistently moist but not soggy. Fertilize every 2-3 weeks with a balanced liquid fertilizer during active growth and blooming. After blooming, cut off the flower stalk, but leave the leaves to replenish the bulb’s energy. Allow the plant to rest in a cool, dark place for 2-3 months in the fall, withholding water and fertilizer. Repot every 2-3 years, or when the bulb becomes root-bound. Ensure good air circulation to prevent fungal diseases. Monitor for pests like mealybugs or spider mites and treat promptly. Provide support for tall flower stalks to prevent them from bending or breaking. Maintain moderate humidity.
How do I propagate Amaryllis?
Amaryllis can be propagated through bulb offsets (division). After the plant has finished blooming and is resting, gently remove the bulb from the pot. Carefully separate any smaller bulbs (offsets) that have formed around the main bulb. Ensure each offset has its own roots. Plant each offset in its own pot with well-draining potting mix, leaving the top of the bulb exposed. Water sparingly until growth appears. Amaryllis can also be propagated from seed, but this method takes several years to produce a blooming plant. Keiki propagation is not applicable to Amaryllis. Stem cuttings are not used for Amaryllis propagation.
Four O'Clock
What are the light requirements for Four O'Clock?
Four O’Clocks thrive in full sun, needing at least 6 hours of direct sunlight daily to produce abundant blooms. A sunny location encourages strong growth and vibrant flower colors. While they can tolerate partial shade, reduced sunlight will result in fewer flowers and leggier growth.
How do I care for Four O'Clock?
Four O’Clocks are relatively easy to care for. Plant them in well-draining soil in a location that receives at least 6 hours of sunlight daily for optimal blooming. Water regularly, especially during dry periods, but avoid overwatering, which can lead to root rot. Fertilize monthly during the growing season with a balanced fertilizer or one formulated for blooming plants to encourage abundant flowering.
How do I propagate Four O'Clock?
Four O’Clocks can be propagated through seeds, tubers, or stem cuttings.
Last updated: April 26, 2026 — Plant care data reviewed and verified by our editorial team.